Ionia Weather Forecast

    • 57
    • 74

    Chance Rain Showers

    • 60
    • 75

    Rain Showers

    • 57
    • 78

    Rain Showers Likely

    • 54
    • 72

    Chance Thunderstorms

    • 54
    • 70

    Slight Chance Thunderstorms

    • 56
    • 73

    Chance Rain Showers

Today 16 Jun Ontario

Partly sunny. A chance of Showers early. Highs Ranging from the upper 60s on the Hilltops to the mid 70s across the lower Elevations. Southwest Winds around 10 Mph. Chance of rain 30 percent.

Tonight 16 Jun Ontario

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers overnight. Lows in the mid 50s. Light Winds, becoming south 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ionia Temperature Statistics

June Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 2 June, 2026

    43.6 °F

  • Average June

    69.5 °F

  • Highest 11 June, 2026

    91.7 °F

Climate (2021–Present)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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